Perhaps a story where Xion gets injured and Rixas has to take care of her while protecting her from approaching enemies. This would show his protective side towards her and also give room for some tender moments between them. They could also have deep conversations during this time about their hopes for the future in the Kingdom Hearts universe.
It might also delve into their emotional bond. Since they have a complex history in the Kingdom Hearts series, the fanfiction could show them dealing with past traumas together. For example, Xion's struggle with her identity and Rixas' memories of his time as a Nobody could be explored in more depth, strengthening their connection in the story.
In a fanfiction of Roxas and Xion at an academy, it could explore their friendship in a new setting. They could form a study group with other characters from the series. Their days could be filled with training sessions in the academy's special arenas as well as normal classes about the history of their world.
One plot idea could be Sora and Xion going on a journey to discover a hidden world within the Kingdom Hearts universe. They might face unique enemies and puzzles along the way.
In fanfiction, Roxas and Xion often share a deep bond. They have a connection that was initially formed within the complex world of Kingdom Hearts. Their relationship can be depicted as one of friendship that has the potential to be something more. Writers might explore how they support each other through their shared experiences of being part of Sora's heart and their own individual existences.
Axel could be the one to give Xion 'the talk'. He's been through a lot and has a good understanding of the world they live in. He could share his experiences with her, especially about loyalty and friendship, as he values his relationships with Roxas and Xion deeply.
Well, in fanfiction, Roxas and Xion at the academy could be part of a sports team. It would be interesting to see them compete in something like keyblade jousting. They'd learn about teamwork and strategy, and it would also be a chance for some friendly rivalries with other students.
One possibility could be that in the fanfiction, Roxas and Xion explore a new world together. They might face challenges that test their friendship, like dealing with a powerful enemy that tries to turn them against each other. But in the end, their bond becomes even stronger as they overcome the difficulties.
We can expect a lot of emotion. Sora is a character full of heart, and Xion has her own emotional baggage. When they meet, it could be a heart - wrenching moment as Xion may reveal her struggles. Sora, being the hero he is, would likely try to comfort her. They might also have a battle of some sort, either against a common enemy or due to some misunderstanding at first.
The 'bad love' might also be due to their own insecurities. Roxas and Xion both have their own issues regarding their existence. Roxas is a Nobody of Sora, and Xion has her own mysterious origin. These factors could lead to a relationship that is full of difficulties and could be considered 'bad' as in not a healthy, straightforward love. It could be a love that is constantly challenged by their own self - doubts and the expectations placed on them in the Kingdom Hearts world.
They are an interesting pairing because they both have complex backstories. Riku has his journey of dealing with the darkness within him, and Xion has her own identity issues being a replica. Their different experiences can create a lot of drama and tension in a fanfiction. When brought together, their stories can intersect in unique ways. For example, Riku could help Xion come to terms with her identity, using his own experiences of self - discovery.